[Greenbuilding] New HVAC unit

Bobbi Chukran bobbi at bobbichukran.com
Wed Jun 1 21:12:35 CDT 2011


The HVAC guy said he could do blown in fiberglass of some sort (no  
formaldehyde, he claims) on the attic floor before they install the  
ductwork.  When I mentioned cellulose, he didn't seem to like that  
idea.  He seemed to think that with my allergies, it might be an  
issue.  I'd certainly rather breathe cellulose than fiberglass.  Of  
course, if the ducts are sealed as well as they should be, there  
shouldn't be ANY leakage into the house.  Working up there in loose  
fiberglass would not be pleasant should we need to do that.

Problem is, it doesn't cool down at night here, or doesn't  
consistently.  It's 9 pm now, and it's still over 90-degrees.  We are  
frugal with the AC, but do need it.

I understand about the proper sizing.  Our former house was never  
comfortable because of that.  We're going to ask the guy if this unit  
he's recommended can be downsized a bit since we will be adding so  
much insulation.

bobbi c.


On Jun 1, 2011, at 6:49 PM, Bob Waldrop wrote:

> We used cellulose in the attic and in the walls.  It was the  
> easiest for do-it-yourselfers and also I think it is the greenest.
>
> Our system admittedly does nothing for air filtration, since if it  
> cools down at night we turn off the AC and open the windows and  
> doors and turn on the whole house fan and ventilate.>>>




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